From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
I like my functions simple, so split up the low level bits from
cherryview_load_luts() into separate functions. Also rename the
whole thing to chv_load_luts() to match the new world order.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_color.c | 98 ++++++++++++++++++------------
1 file changed, 60 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index ca341a9e47e6..9e34aba4d630 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -784,13 +784,65 @@ static void icl_load_luts(const struct intel_crtc_state *crtc_state)
}
}
-static void cherryview_load_luts(const struct intel_crtc_state *crtc_state)
+static u32 chv_cgm_degamma_ldw(const struct drm_color_lut *color)
+{
+ return drm_color_lut_extract(color->green, 14) << 16 |
+ drm_color_lut_extract(color->blue, 14);
+}
+
+static u32 chv_cgm_degamma_udw(const struct drm_color_lut *color)
+{
+ return drm_color_lut_extract(color->red, 14);
+}
+
+static void chv_load_cgm_degamma(struct intel_crtc *crtc,
+ const struct drm_property_blob *blob)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ const struct drm_color_lut *lut = blob->data;
+ int i, lut_size = drm_color_lut_size(blob);
+ enum pipe pipe = crtc->pipe;
+
+ for (i = 0; i < lut_size; i++) {
+ I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 0),
+ chv_cgm_degamma_ldw(&lut[i]));
+ I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 1),
+ chv_cgm_degamma_udw(&lut[i]));
+ }
+}
+
+static u32 chv_cgm_gamma_ldw(const struct drm_color_lut *color)
+{
+ return drm_color_lut_extract(color->green, 10) << 16 |
+ drm_color_lut_extract(color->blue, 10);
+}
+
+static u32 chv_cgm_gamma_udw(const struct drm_color_lut *color)
+{
+ return drm_color_lut_extract(color->red, 10);
+}
+
+static void chv_load_cgm_gamma(struct intel_crtc *crtc,
+ const struct drm_property_blob *blob)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ const struct drm_color_lut *lut = blob->data;
+ int i, lut_size = drm_color_lut_size(blob);
+ enum pipe pipe = crtc->pipe;
+
+ for (i = 0; i < lut_size; i++) {
+ I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 0),
+ chv_cgm_gamma_ldw(&lut[i]));
+ I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 1),
+ chv_cgm_gamma_udw(&lut[i]));
+ }
+}
+
+static void chv_load_luts(const struct intel_crtc_state *crtc_state)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
const struct drm_property_blob *gamma_lut = crtc_state->base.gamma_lut;
const struct drm_property_blob *degamma_lut = crtc_state->base.degamma_lut;
- enum pipe pipe = crtc->pipe;
cherryview_load_csc_matrix(crtc_state);
@@ -799,41 +851,11 @@ static void cherryview_load_luts(const struct intel_crtc_state *crtc_state)
return;
}
- if (degamma_lut) {
- const struct drm_color_lut *lut = degamma_lut->data;
- int i, lut_size = INTEL_INFO(dev_priv)->color.degamma_lut_size;
+ if (degamma_lut)
+ chv_load_cgm_degamma(crtc, degamma_lut);
- for (i = 0; i < lut_size; i++) {
- u32 word0, word1;
-
- /* Write LUT in U0.14 format. */
- word0 =
- (drm_color_lut_extract(lut[i].green, 14) << 16) |
- drm_color_lut_extract(lut[i].blue, 14);
- word1 = drm_color_lut_extract(lut[i].red, 14);
-
- I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 0), word0);
- I915_WRITE(CGM_PIPE_DEGAMMA(pipe, i, 1), word1);
- }
- }
-
- if (gamma_lut) {
- const struct drm_color_lut *lut = gamma_lut->data;
- int i, lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size;
-
- for (i = 0; i < lut_size; i++) {
- u32 word0, word1;
-
- /* Write LUT in U0.10 format. */
- word0 =
- (drm_color_lut_extract(lut[i].green, 10) << 16) |
- drm_color_lut_extract(lut[i].blue, 10);
- word1 = drm_color_lut_extract(lut[i].red, 10);
-
- I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 0), word0);
- I915_WRITE(CGM_PIPE_GAMMA(pipe, i, 1), word1);
- }
- }
+ if (gamma_lut)
+ chv_load_cgm_gamma(crtc, gamma_lut);
}
void intel_color_load_luts(const struct intel_crtc_state *crtc_state)
@@ -1232,7 +1254,7 @@ void intel_color_init(struct intel_crtc *crtc)
if (IS_CHERRYVIEW(dev_priv)) {
dev_priv->display.color_check = chv_color_check;
dev_priv->display.color_commit = i9xx_color_commit;
- dev_priv->display.load_luts = cherryview_load_luts;
+ dev_priv->display.load_luts = chv_load_luts;
} else if (INTEL_GEN(dev_priv) >= 4) {
dev_priv->display.color_check = i9xx_color_check;
dev_priv->display.color_commit = i9xx_color_commit;
--
2.21.0
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